IDEA-86947 Run configuration list should support drag and drop to reorder the run configurations

java/java-impl/src/com/intellij/refactoring/changeClassSignature/ChangeClassSignatureDialog.java

@@ -256,6 +256,11 @@ public class ChangeClassSignatureDialog extends RefactoringDialog {
       fireTableDataChanged();
       //fireTableRowsUpdated(Math.min(index1, index2), Math.max(index1, index2));
     }
+
+    @Override
+    public boolean canExchangeRows(int oldIndex, int newIndex) {
+      return true;
+    }
   }
 
   private class MyCellRenderer extends ColoredTableCellRenderer {

java/java-impl/src/com/intellij/refactoring/changeSignature/ExceptionsTableModel.java

@@ -64,6 +64,11 @@ public class ExceptionsTableModel extends AbstractTableModel implements Editable
     }
   }
 
+  @Override
+  public boolean canExchangeRows(int oldIndex, int newIndex) {
+    return true;
+  }
+
   public int getRowCount() {
     return myTypeCodeFragments.size();
   }

java/java-impl/src/com/intellij/refactoring/util/ParameterTablePanel.java

@@ -400,6 +400,13 @@ public abstract class ParameterTablePanel extends JPanel {
       myTable.getSelectionModel().setSelectionInterval(targetRow, targetRow);
       updateSignature();
     }
+
+    @Override
+    public boolean canExchangeRows(int row, int targetRow) {
+      if (row < 0 || row >= getVariableData().length) return false;
+      if (targetRow < 0 || targetRow >= getVariableData().length) return false;
+      return true;
+    }
   }
 
   private class CheckBoxTableCellRenderer extends BooleanTableCellRenderer {